4WRA6V30-2X/G24N9K4/V-589比例伺服阀

4WRA6V30-2X/G24N9K4/V-589比例伺服阀

比例电磁铁的类型按照工作原理主要分为

如下几类:

(1)力控制型

这类电磁铁的行程短，只有1 5mm,输出力与输入电流成正比,常用在比例阀的先导控制级

上:

(2)行程控制型

由力控制型加负载弹簧共同组成，电磁铁输出的力通过弹簧转换成输出位移,输出位移与输入电流成正比，工作行程达3mm,线性好，可以用在直控式比例阀上;

(3)位置调节型

衔铁的位置由传感器检测后,发出一个阀内反馈信号,在阀内进行比较后重新调节衔铁的位置。阀内形成闭环控制,精度高,衔铁的位置与力

无关，精度高的比例阀如德国的博世意大利的阿托斯等都采用这种结构。

比例阀与放大器配套使用放大器采用电流负反馈,设置斜坡信号发生器阶跃函数发生器、PD调节器反向器等,控制升压降压时间或运动加速度及减速度。断电时, 能使阀芯处于安全位置。

比例电磁铁和液压阀组成电液比例阀。由于比例电磁铁可以在不同的电流下得到不同的力(或行程),因此可以无级改变压力、流量。故比例电磁铁是比例阀的关键元件。

比例控制技术是在开关控制技术和伺服控制技术之间的过渡技术，采用比例放大器控制比例电磁铁，实现对比例阀的连续控制，从而实现对液压系统压力、流量、方向的无级调节；但是用比例方向阀进行速度控制时，如果负载是变化的，那么执行元件的速度就会受负载变化的影响（负载小时速度快，负载大时速度慢）；于是在系统设计时，人们引入了压力补偿器，它可以使比例阀阀口的压差保持恒定，使执行元件的速度不受负载变化的影响。

4WRA6V30-2X/G24N9K4/V-589比例伺服阀

先导式比例方向阀, 型号4WRZ..和5WRZ.. , 4WRZ..型阀是先导式、比例电磁铁

控制的四通方向阀,它可控制液流的方向和大小。

结构:

该阀主要由下列部分组成:

(1)装有比例电磁. (5和6 )的先导控制阀( 9 )

(2)装有主阀芯(11)和对中弹簧(12)的主阀(10)

工作原理:

(1)当电磁铁(5和6)不带电时,对中弹簧(12)将主阀芯(11)保持在中位。

(2)主阀芯(11)的动作由先导阀(9)来控制-它会间接地被电磁铁”b"(6)成比例地推动。首先控制阀芯( 2 )被推向右侧,控制油经过先导阀(9 )进入控制腔( 13 )，并与输入信号成比例地推动主阀芯( 11 ), 这时,P口与A口及B口与T口通过阀芯与阀体形成的节流口接通,节流特性为渐进式。

(3)先导阀所需的控制油液可通过P口内供或X口外供。

(4)如果电磁铁(6)失电,控制阀芯( 2 )和主阀芯( 11 )会重新回到中位。

(5)随着主阀芯位置的不同, P口与A口、B口与T口(R)接通或P口与B口、A口与T口(R)通。可选保护罩手动应急操作( 14和15 ),它可使先导阀芯( 2 )在电磁不通电的情况下移动。

比例阀型号

R978916639 4WRAE6E03-2X/G24K31/A1V

R900953168 4WRAE6E03-2X/G24N9K31/A1V

R901066051 4WRAE6E03-2X/G24N9K31/F1V

R900920071 4WRAE6E03-2X/G24N9Z31/A1V

R900954069 4WRAE6E07-2X/G24K31/A1V

R901201706 4WRAE6E07-2X/G24K31/A1V-280

R900759329 4WRAE6E07-2X/G24K31/F1V

R900925006 4WRAE6E07-2X/G24N9K31/A1V

R901130352 4WRAE6E07-2X/G24N9K31/A1V-280

R900925456 4WRAE6E07-2X/G24N9K31/F1V

R900912300 4WRAE6E07-2X/G24N9Z31/A1V

R901015564 4WRAE6E1-07-2X/G24K31/A1V

R900617493 4WRAE6E1-07-2X/G24K31/F1V

R901355164 4WRAE6E1-07-2X/G24N9K31/A1V

R900711880 4WRAE6E1-07-2X/G24N9K31/F1V

R900954072 4WRAE6E1-15-2X/G24K31/A1V

R900738355 4WRAE6E1-15-2X/G24K31/F1V

R900753599 4WRAE6E1-15-2X/G24N9K31/A1V

R900954073 4WRAE6E1-30-2X/G24K31/A1V

R900928872 4WRAE6E1-30-2X/G24N9K31/A1V

R900947058 4WRAE6E1-30-2X/G24N9K31/F1V

R900954070 4WRAE6E15-2X/G24K31/A1V

R901282085 4WRAE6E15-2X/G24K31/A1V-280

R901019997 4WRAE6E15-2X/G24K31/F1V

R900909389 4WRAE6E15-2X/G24N9K31/A1V

R900947059 4WRAE6E15-2X/G24N9K31/F1V

R900553353 4WRAE6E15-2X/G24N9Z31/A1V

R900957274 4WRAE6E3-30-2X/G24N9K31/F1V

R900954071 4WRAE6E30-2X/G24K31/A1V

R901015613 4WRAE6E30-2X/G24K31/F1V

R900558355 4WRAE6E30-2X/G24N9K31/A1V

R900974925 4WRAE6E30-2X/G24N9K31/A1V-280

R900931485 4WRAE6E30-2X/G24N9K31/F1V

R900552113 4WRAE6E30-2X/G24N9Z31/A1V

R900920810 4WRAE6E30-2X/G24N9Z31/F1V

R900745630 4WRAE6EA07-2X/G24K31/A1V

R900966133 4WRAE6EA07-2X/G24N9K31/A1V

R900723376 4WRAE6EA07-2X/G24N9K31/F1V

R900954074 4WRAE6EA15-2X/G24K31/A1V

R901145773 4WRAE6EA15-2X/G24K31/F1V

R900750718 4WRAE6EA15-2X/G24N9K31/A1V

R900957490 4WRAE6EA15-2X/G24N9K31/F1V

R900579463 4WRAE6EA15-2X/G24N9Z31/F1V

R900954075 4WRAE6EA30-2X/G24K31/A1V

R901021332 4WRAE6EA30-2X/G24K31/F1V

R900937158 4WRAE6EA30-2X/G24N9K31/A1V

R900938373 4WRAE6EA30-2X/G24N9K31/F1V

R900916339 4WRAE6EA30-2X/G24N9Z31/A1V

R900929851 4WRAE6EB07-2X/G24N9K31/A1V

R900916594 4WRAE6EB15-2X/G24K31/A1V

R900935661 4WRAE6EB15-2X/G24N9K31/A1V

R900963738 4WRAE6EB15-2X/G24N9K31/F1V

R900969665 4WRAE6EB30-2X/G24N9K31/A1V

R900935958 4WRAE6M30-2X/G24N9K31/A1V

R900909958 4WRAE6M30-2X/G24N9Z31/A1V

R901117558 4WRAE6V03-2X/G24N9K31/A1V

R900703358 4WRAE6V07-2X/G24N9K31/A1V

R901306165 4WRAE6V07-2X/G24N9K31/F1V

R901201460 4WRAE6V1-07-2X/G24N9K31/F1V

R901201458 4WRAE6V1-15-2X/G24N9K31/F1V

R900965020 4WRAE6V1-30-2X/G24N9K31/F1V

R900577739 4WRAE6V1-30-2X/G24N9Z31/A1V

R900578084 4WRAE6V1-30-2X/G24N9Z31/F1V

R900576353 4WRAE6V1-30-2X/G24Z31/F1V

R900758996 4WRAE6V15-2X/G24K31/A1V

R901250162 4WRAE6V15-2X/G24N9K31/A1V

R900551850 4WRAE6V15-2X/G24N9Z31/A1V

R900935370 4WRAE6V30-2X/G24N9K31/A1V

R901424158 4WRAE6V30-2X/G24N9K31/F1V

R900736894 4WRAE6W03-2X/G24N9K31/A1V

R900618361 4WRAE6W03-2X/G24N9K31/F1V

R900954076 4WRAE6W07-2X/G24K31/A1V

R900778280 4WRAE6W07-2X/G24K31/F1V

R900932003 4WRAE6W07-2X/G24N9K31/A1V

R900950144 4WRAE6W07-2X/G24N9K31/F1V

R901026400 4WRAE6W1-07-2X/G24K31/A1V

R901099279 4WRAE6W1-07-2X/G24K31/F1V

R900947785 4WRAE6W1-07-2X/G24N9K31/A1V

R900958128 4WRAE6W1-07-2X/G24N9K31/F1V

R900954079 4WRAE6W1-15-2X/G24K31/A1V

R901018004 4WRAE6W1-15-2X/G24K31/F1V

R900913442 4WRAE6W1-15-2X/G24N9K31/A1V

R900950774 4WRAE6W1-15-2X/G24N9K31/F1V

R900555820 4WRAE6W1-15-2X/G24N9Z31/A1V

R900954080 4WRAE6W1-30-2X/G24K31/A1V

R900974817 4WRAE6W1-30-2X/G24K31/F1V

R900913445 4WRAE6W1-30-2X/G24N9K31/A1V

R900941258 4WRAE6W1-30-2X/G24N9K31/F1V

R900549444 4WRAE6W1-30-2X/G24N9Z31/A1V

R900954077 4WRAE6W15-2X/G24K31/A1V

R900976919 4WRAE6W15-2X/G24K31/F1V

R900908938 4WRAE6W15-2X/G24N9K31/A1V

R901290623 4WRAE6W15-2X/G24N9K31/A1V-280

R900908195 4WRAE6W15-2X/G24N9K31/F1V

R900900159 4WRAE6W15-2X/G24N9Z31/A1V

R901439515 4WRAE6W2-30-2X/G24N9K31/A1V

R900915895 4WRAE6W3-15-2X/G24N9Z31/F1V

R900975416 4WRAE6W3-30-2X/G24N9K31/A1V

R900954078 4WRAE6W30-2X/G24K31/A1V

R900762072 4WRAE6W30-2X/G24K31/F1V

R900900987 4WRAE6W30-2X/G24N9K31/A1V

R900974927 4WRAE6W30-2X/G24N9K31/A1V-280

R900943826 4WRAE6W30-2X/G24N9K31/F1V

R900557303 4WRAE6W30-2X/G24N9Z31/A1V

R900914844 4WRAE6W30-2X/G24N9Z31/A1V-612

R900786463 4WRAE6WA07-2X/G24K31/A1V

R900783251 4WRAE6WA07-2X/G24K31/F1V

R900946529 4WRAE6WA07-2X/G24N9K31/A1V

R900954081 4WRAE6WA15-2X/G24K31/A1V

R900951675 4WRAE6WA15-2X/G24N9K31/A1V

R900901182 4WRAE6WA15-2X/G24N9K31/F1V

R900905675 4WRAE6WA15-2X/G24N9Z31/A1V

R900954082 4WRAE6WA30-2X/G24K31/A1V

R901100348 4WRAE6WA30-2X/G24K31/F1V

R900962407 4WRAE6WA30-2X/G24N9K31/A1V

R900752021 4WRAE6WA30-2X/G24N9K31/F1V

R900903760 4WRAE6WA30-2X/G24N9Z31/A1V

R901170924 4WRAE6WB07-2X/G24N9K31/F1V

R900913647 4WRAE6WB15-2X/G24N9K31/A1V

R901239200 4WRAE6WB15-2X/G24N9K31/F1V

R900941851 4WRAE6WB30-2X/G24N9K31/A1V

力士乐REXROTH比例方向阀，直控式4WRA ...XE

R901158548 4WRA6E07-2X/G24XEJ/V

R901097419 4WRA6E15-2X/G24XEJ/V

R901154863 4WRA6E30-2X/G24XEJ/V

R901254509 4WRA6EA03-2X/G24XEJ/V

R901262600 4WRA6EA07-2X/G24XEJ/V

R901393419 4WRA6EA15-2X/G24XEJ/V

R901173051 4WRA6EA30-2X/G24XEJ/V

R901271117 4WRA6EB07-2X/G24XEJ/V

R901061252 4WRA6W07-2X/G24XEJ/V

R901368290 4WRA6W1-07-2X/G24XEJ/V

R901066698 4WRA6W1-15-2X/G24XEJ/V

R901028052 4WRA6W1-30-2X/G24XEJ/V

R901177023 4WRA6W15-2X/G24XEJ/V

R901053397 4WRA6W30-2X/G24XEJ/V

R901123241 4WRA6WA30-2X/G24XEJ/V

力士乐REXROTH二位四通和三位四通比例方向阀直控式，阀芯带位移电反馈，不带集成式放大版（OBE）4WRE

R902650795 4WRE6V32-2X/G24K4V-822

R900726605 4WRE10E1-25-2X/G24K4/V

R900954103 4WRE10E1-50-2X/G24K4/V

R900954104 4WRE10E1-75-2X/G24K4/V

R902435414 4WRE10E25-2X/24Z4/V-93

R900954100 4WRE10E25-2X/G24K4/V

R902650773 4WRE10E25-2X/G24K4V-93

R901048036 4WRE10E3-75-2X/G24K4/V

R900954101 4WRE10E50-2X/G24K4/V

R900954102 4WRE10E75-2X/G24K4/V

R901039213 4WRE10EA25-2X/G24K4/V

R900752971 4WRE10EA50-2X/G24K4/V

R900969351 4WRE10EA75-2X/G24K4/V

R900703186 4WRE10EB50-2X/G24K4/V

R901151585 4WRE10V1-25-2X/G24K4/V

R901415922 4WRE10V1-50-2X/G24K4/M

R901017446 4WRE10V1-50-2X/G24K4/V

R901414444 4WRE10V1-75-2X/G24K4/V

R900954115 4WRE10V25-2X/G24K4/V

R900954116 4WRE10V50-2X/G24K4/V

R901236220 4WRE10V50-2X=G24K4/V

R900954117 4WRE10V75-2X/G24K4/V

R900974152 4WRE10W1-25-2X/G24K4/V

R900954113 4WRE10W1-50-2X/G24K4/V

R900954114 4WRE10W1-75-2X/G24K4/V

R900954105 4WRE10W25-2X/G24K4/V

R900608420 4WRE10W3-75-2X/G24K4/V

R900954106 4WRE10W50-2X/G24K4/V

R900954107 4WRE10W75-2X/G24K4/V

R901436393 4WRE10WA25-2X/G24K4/V

R901086329 4WRE10WA50-2X/G24K4/V

R901030897 4WRE10WA75-2X/G24K4/V

R901339372 4WRE10WB75-2X/G24K4/V

R901031274 4WRE6E04-2X/G24K4/V

R900933478 4WRE6E08-2X/G24K4/V

R900968149 4WRE6E1-08-2X/G24K4/V

R900954093 4WRE6E1-16-2X/G24K4/V

R900954094 4WRE6E1-32-2X/G24K4/V

R900954092 4WRE6E16-2X/G24K4/V

R900926366 4WRE6E32-2X/G24K4/V

R900783105 4WRE6EA08-2X/G24K4/V

R900720198 4WRE6EA16-2X/G24K4/V

R900752799 4WRE6EA32-2X/G24K4/V

R901364823 4WRE6Q2-08-2X/G24K4/V

R900246943 4WRE6V04-2X/G24K4/V

R900954097 4WRE6V08-2X/G24K4/V

R902650793 4WRE6V08-2X/G24K4V-822

R900966805 4WRE6V1-16-2X/G24K4/V

R901403868 4WRE6V16-2X/G24K4/M

R900954098 4WRE6V16-2X/G24K4/V

R902651062 4WRE6V16-2X/G24K4/V-916

R902650794 4WRE6V16-2X/G24K4V-822

R900954099 4WRE6V32-2X/G24K4/V

R901246418 4WRE6W04-2X/G24K4/V

R900941264 4WRE6W08-2X/G24K4/V

R900953729 4WRE6W1-08-2X/G24K4/V

R900954095 4WRE6W1-16-2X/G24K4/V

R901236264 4WRE6W1-16-2X=G24K4/V

R900954096 4WRE6W1-32-2X/G24K4/V

R900775379 4WRE6W1-32-2X/G24K4/V=LB

R900944121 4WRE6W16-2X/G24K4/V

R900773304 4WRE6W16-2X/G24K4/V=LB

R900933480 4WRE6W32-2X/G24K4/V

R901433171 4WRE6W9-32-2X/G24K4/V

R901022178 4WRE6WA08-2X/G24K4/V

R900965434 4WRE6WA16-2X/G24K4/V

R901300969 4WRE6WA16-2X/G24K4/V-303

R901011624 4WRE6WA32-2X/G24K4/V

R902437398 4WRE6V08-2X/G24Z4/V-822

R902437418 4WRE6V16-2X/G24Z4/V-822

R902461723 4WRE6V16-2X/G24Z4/V-916

R902437419 4WRE6V32-2X/G24Z4/V-822

力士乐REXROTH二位四通和三位四通比例方向阀直控式，阀芯带位移电反馈，带集成式放大版（OBE）4WREE

R900958157 4WREE10E1-25-2X/G24K31/A1V

R901268119 4WREE10E1-25-2X/G24K31/A1V-280

R901066667 4WREE10E1-25-2X/G24K31/F1V

R900933076 4WREE10E1-50-2X/G24K31/A1V

R901162016 4WREE10E1-50-2X/G24K31/A1V-280

R901354776 4WREE10E1-50-2X/G24K31/F1M

R900703908 4WREE10E1-50-2X/G24K31/F1V

R901381875 4WREE10E1-75-2X/G24K31/A1M

R900927232 4WREE10E1-75-2X/G24K31/A1V

R901268118 4WREE10E1-75-2X/G24K31/A1V-280

R901354778 4WREE10E1-75-2X/G24K31/F1M

R900970089 4WREE10E1-75-2X/G24K31/F1V

R900933073 4WREE10E25-2X/G24K31/A1V

R901112728 4WREE10E25-2X/G24K31/A1V-280

R900956574 4WREE10E25-2X/G24K31/F1V

R900949382 4WREE10E3-50-2X/G24K31/A1V

R901363566 4WREE10E3-50-2X/G24K31/F1V

R900972424 4WREE10E3-75-2X/G24K31/A1V

R901048034 4WREE10E3-75-2X/G24K31/F1V

R900927231 4WREE10E50-2X/G24K31/A1V

R901126284 4WREE10E50-2X/G24K31/A1V-280

R901219466 4WREE10E50-2X/G24K31/A1V=XV

R901354780 4WREE10E50-2X/G24K31/F1M

R900943094 4WREE10E50-2X/G24K31/F1V

R987098779 4WREE10E50-2X/G24K31/F1V=CSA

R901356207 4WREE10E75-2X/G24K31/A1M

R900927230 4WREE10E75-2X/G24K31/A1V

R900716433 4WREE10E75-2X/G24K31/A1V-280

R901219782 4WREE10E75-2X/G24K31/A1V=XV

R901354781 4WREE10E75-2X/G24K31/F1M

R900927356 4WREE10E75-2X/G24K31/F1V

R901395952 4WREE10E75-2X=G24K31/A1V

R900967790 4WREE10EA25-2X/G24K31/A1V

R900767561 4WREE10EA25-2X/G24K31/F1V

R900939866 4WREE10EA50-2X/G24K31/A1V

R900971420 4WREE10EA50-2X/G24K31/F1V

R900940191 4WREE10EA75-2X/G24K31/A1V

R900976330 4WREE10EA75-2X/G24K31/F1V

R900710343 4WREE10EB50-2X/G24K31/A1V

R900950497 4WREE10EB75-2X/G24K31/A1V

R900724343 4WREE10EB75-2X/G24K31/F1V

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力士乐REXROTH三位四通比例方向阀，直接操作、集成式放大版（OBE）4WREEM

单向阀是流体只能沿进水口流动，出水口介质却无法回流，俗称单向阀。单向阀又称止回阀或逆止阀。用于液压系统中防止油流反向流动,或者用于气动系统中防止压缩空气逆向流动。单向阀有直通式和直角式两种。直通式单向阀用螺纹连接安装在管路上。直角式单向阀有螺纹连接、板式连接和法兰连接三种形式。